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Super Mariofell 64 (2026)

SiIvaGunner

Mod of Super Mario 64

Nintendo 64

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Super Mariofell 64 is a single level rom hack which contains an alternative universe version of The Princess's Secret Slide based on the Undertale AU "Underfell" but applied to Super Mario 64, which inverts the morals of the characters. The rom hack was released by SiIvaGunner during their April Fools' 2026 event, disguised as a playlist link under the video "The Princess's Sinistar Slide - Super Mariofell 64".

Details

Developers
SiIvaGunner
Publishers
SiIvaGunner
Genres
Platform
Themes
Action, Horror

Release dates

  • Apr 01, 2026 Nintendo 64